Refrigerator cabinet



REFRIG'ERATOR CA`B INET Filed oct. 18. 192e 2 sheets-sneer 1 v INVENTOR.

.L/qyd Cope/nan.

oct. 7. 193.0.V i LjG. COPEMAN`- '1,777,186

` REFRIGERATQR CABINET Filed Oct. 18 1926 2 Sheets-Sheet 2 BY y `ATTORNEY= This invention relates to a refrigerator' Patentedv Oct. 7,1930.

m1-ED STATES PATENT orr-'irgsilf LLUYD G. COPEMAN, F FLINT, MICHIGAN,ASBIGNOR TOCOPEMAN .'LAIBOVRA'IORI ES COMPANY, 0F FLINT, MICHIGAN, ACOMORATION OF MICHIGAN BEFRIGERATOR QABINET Application ledvoctobet 18,V1926. Serial No.1. 142,298.

cabinet and pertains articula-rly to cabinets of the larger typeA suc asice cream cabinets,y

containing a plurality of units. y t

Heretoforein the manufacture of lice .cream cabinets, or similarstructures, utiliz- 4 ing mechanical `refrigeration, it has been thelpractice to construct the main cooling heat absorptioirfand cooling unitof the cabinet of a suitable container which has been filled withbrineor` other non-freezing solution, and in which is positionedsuitableexpansionv coils for effecting of the brine. This method of coolingcabinets of this type has been objectionable, nOt only because of itslow eficiency, but also because ofthe expensive construction, thereplacing vof thev i brine and the-liability ofthe brine seepng andveating through the joints of thecontainer shell. Another greatdisadvantage of this type of cabinet, and the disadvantage which is theparticular object of this inven- `,tion to overcome, is'the large amountof space and theweight which is necessarily incident to suchconstruction.

Itfis the primary object 'of this invention 4to provide a refrigeratingcabinet of the type adapted to utilize mechanical refrigeration whichentirely does away with thel use of brine or other non-freezing orholdover mediums, and which at the same .time presents a cabinet whichis relatively light as well as extremely compact.

.. Another object vof the present invention is the provision 'of arefrigel'ating cabinet, the main part of which includes the cabinet andinsulating structure which is designed to lbe manufactured and shippedas a separate article .y to the consumer, the said cabinet being fittedand completely equipped ready to be connected lto the refrigeratingapparatus, but'minus the means which I utilize for .taking the place ofthe brine container. By this structure I have made it possible tocompletely build and ship an ice cream cabinet, orthe like, which isextremely light and compact, direct to the user. After this cabinet hasbeen received by `the user2 the conducting and holdover members'whichform a part 0f `this invention net. f

Fig. 2 is a vertical sectional view taken online '2-2 of Fig. 1 andillustratin `the place. 4 i y l Fig. 3 is a view similar to Fig, 2, and

`manner 'of securing the expansion co1 s in showing the coils cast inplace.

Fig. 4 is a vertical sectional view thro h the completely installedcabinet showing t e.

outer-lining of the' cabinet, the insulating material, thecast embeddedcoils, and final. I

ly the cast stone container adapted to be inserted within the coils.-Fig. 5 is a perspective View of my'cast stone container which serves ,asa container and holdovei medium for replacing the brine. f

F1g.- 6 is a fragmentary sectional view,

partly diagrammatic, and illustrating the I manner of positioning andconnectingV the coils of the several units, and also the manner ofpositioning the cast stone container and holdover within the coils. Inthe drawings I have shown an embodiment of my invention as comprising astand@ ard ice cream cabinet. .The construction .Of this cabinet and theoverfall size will be determined by the amount of insulation de.- sired,and as shown in Fig. 1, this. insulation may comprise a main ,body ofcorkkor s imilai` material l, It will be obvious therefore, at a firstglance, that this cabinet need only be very small in size, as thethickness of the insulation determines the width and length of thecabinets in addition. to the diameter of the ice cream containers. Thiscork lining, i

or body ofthe Ycabinet is provided with a plu ed type system, and ifdesired, the refrigererties.

ation may be accomplished in .part by the use of brine coils which ma bespaced -alternately with the refrigerating coils, as disclosed in mcopending ap lication No. 86,719, filed eb. 8, 1926. In t e drawings Ihave shown direct expansion coils which may be designated 4. The coilsof each unit are Ppositioned, as shown in Figs. 1 and 2, and

may be connected together as shown. I preferably secure these'coils inplace by inserting a suitable core 5, as shown in Fig. 2, within theapertures 2 formed by the cork insulation, and then pouring a suitablebinding material which is preferably an Oxy-chloride cement in order tobind and secure the coils in position. This cement preferabl enters thepores and interstices of the cor and thus securely binds the coils inposition,

The core 5 may then be withdrawn to present an ice cream cabinet of themechanical refrigeration type Vready for shippin After the cabinet hasbeen shippecgl to the user, a suitable container, which may bedesignated 6, and which is illustrated in Fig. 5, ma, be shipped to theuser, or may be manu actured at the place of installation, and thiscontainer is preferably formed of an Oxy-chloride cement which may bemade up of a mixture of magnesium oxide and ine silica, or sand, towhich ma be added enough magnesium chloride in so ution whereby to makea mixture that may be easily poured. This' container 6 may bemanufactured in' suitable moulds, as will be obvious 'to those skilledin the art, and preferably of a size to snugly fit within the aperturesformed by the embedded coils 4, as best shown in Fig. 4. The cast stoneor otherbinding material for holding the coils 4 in place is preferablyust sufficient to cover the coils, or

even etter, it is just sufiicient to connect the coils, and may leavethe coils partly exposed at their inner surface. The cast stonecontainer and holdover 6 will then, when inserted in the cabinet, eithercontact with the coils 4, or the binding material covering the same andwill serve as an excellent conductor for abstracting the heat from theice cream container, and for maintaining the temperature incident to itsholdover prop- The expansion coils therefore form a. permanent part of acabinet, are rigidly secured in place, and do not add materially to theWeight of the cabinet. The heavy Stone container 6 may be inserted at antime after the cabinet has been shipped to t e user, and it not onlyserves as a conductor, but also as cabinets. The coils 4-may bepositioned and v connected in the usual manner, and in Fig. 6, I haveshown a conventional arrangement whereby the refrigerant may beAcirculated through the expansion.coils.

i ,What I claim is:

1. A brineless ice cream cabinet, or similar structure, comprising acast stone member separate from the cabinet for receiving the containerto be cooled, a linin of insulating material closely adjacent sai memberand a refrigerating coil positioned in said s ace between said memberand linin surroun ing the cast stone member, said coil lbeing sepa ratedfrom,`but in heat conducting-relation to said member.

2. A brineless refrigerating cabinet comprising aremovable storagecompartment of cast stone, refrigerating coils positioned in heatexchange relation to and surrounding the compartment and forming apermanent part of the cabinet, and a lining of insulating materialspaced from said compartment a dis'mce substantially the diameter ofsaid co1 l Y 3. A brineless rfrigerating cabinet comprising insulatingmaterial formed to provide one or more apertures, and refrigeratingcoils positioned within said aperture, or apertures, to complete thecabinet for shipping, and a separate and removable'stone storagecompartment in the form of a conductor and holdover, adapted to beinserted in said a ertures and within said coils at the time oinstallation.`

4. A refri erating cabinet, comprising a body of insu ating materialformed to provide one or more apertures, refrigerating coils positionedon the inside of said aperture, or apertures, and -secured thereto byplastically applied material, and a removable member insertable withinthe a rture .0r apertures at the place of instal ation and adapted toreceive the container to be cooled.

5. An ice cream cabinet, or similar structure, comprising insulatingmaterial formed to present an aperture, orapertures, refrig-v eratingcoils positioned within the aperture, or apertures, the coils beingsecured to the walls of said apertures by plastically applied stone, anda separate storage container of a material serving as a holdover andadapted to be insertedl within the aperture formed by said coils.

6. An ice cream cabinet, or similar structure, com rising a relativelylight cabinet built up o insulating material provided with apertures andrefrigerating coils positioned Within and along the sides of said aertures, and a cast stone storage container a apted to be insertedWithin the apertures formed by said insulating material and coils at theplace of installation.

lll() 7. An ice cream cabinet, or similar construction comprising a foodchamber formed of solid cast stone, refrigerating coils surrounding saidchamber, said cast stone chamber and coils being independent of eachother and in heat conducting relation thereto, insulatin materialsurrounding said coils and spaced rom the chamber a distancesubstantially e ual to the diameter of said coils, and means or securingand positioning said coils to said insulating material.

8. An ice cream cabinet or similar structure, comprisin a cabinet havinginsulating material forme to provide one or more apertures, containersformed of relatively high heat conducting material positioned in saidaperture or apertures and shaped to receive an ice cream can or thelike, refrigerating coils positioned within the aperture or apertureskand in heat conducting relation with said containers, said coils beingheld in heat conducting relation with said containers by plasticallyapplied stone allowed to harden.

9. An ice cream cabinet or similar structure, comprisin a cabinet havinginsulating material forme to provide one or more aper` tures, containersformed of relatively high heat conducting material positioned in saidaperture or apertures and shaped to receive an ice cream can or thelike, refrigerating coils positioned Within the aperture or aperturesand in heat conducting relation with said containers, said coilsbeingheld in heat conducting relation with said containers byplastically applied stone allowed to harden, said stone serving as ahold-over for the refrigerating coils and securing said coils Withinsaid apertures, and said contalners belng removable from the respectiveapertures.

In testimony whereof I aflix my signature.

LLOYD G. COPEMAN.

